It has been over a year since the ballad group’s previous comeback with “In Trouble” won No. 1 on Mnet Countdown. “Full Story” is the title track from their mini album “Part 1 – The Blue Bird” which was released on September 17, 2010.

After leader Park Ji Heon left the trio for a solo career in August 2010, the remaining members Kim Kyung Rok and Choi Hyun Joon are promoting the title track as a duo. Their company, Star Empire, plans to find a third member to make V.O.S. a trio again.